categorize              Categorize input data by comparing the AIC
                        values of the three fitted models.
categorize_nosignal     Checks for signal in the data.
dataCheck               Checks if data is in correct format.
doublesigmoidalFitFormula
                        Double Sigmoidal Formula
doublesigmoidalFitFunction
                        Double sigmoidal fit function.
fitFunction             fit function.
lineFitFormula          Line fit formula.
lineFitFunction         Linear fit function.
normalizeData           Normalization of given data
numericalReCalculation
                        Calls fitting algorithm with different initial
                        parameters.
printInfectionCurves    Prints infection curves.
sameSourceDataCheck     Check is data came from the same source.
sigmoidalFitFormula     sigmoidalFitFormula
sigmoidalFitFunction    Sigmoidal fit function
unnormalizeData         Unnormalization of given data
